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Updated: May 7, 2026

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Using the zygomatic root as a reference point in temporal lobe surgery.

J M Beckman1, F L Vale

  • 1Department of Neurosurgery & Brain Repair, University of South Florida, Tampa, FL, USA.

Acta Neurochirurgica
|September 21, 2013
PubMed
Summary
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The zygomatic root (ZR) is a reliable bony landmark for navigating temporal lobe surgery. This study quantifies its relationship to key temporal lobe structures, aiding surgical dissection.

Area of Science:

  • Neurosurgery
  • Anatomy
  • Medical Imaging

Background:

  • The zygomatic root (ZR) is a common landmark in cranial procedures.
  • Its utility for temporal lobe anatomy identification is understudied.
  • This research aims to define the ZR's relationship with temporal lobe structures.

Purpose of the Study:

  • To define the structural relationship between the zygomatic root and temporal lobe anatomy.
  • To provide a consistent landmark for guiding surgical dissection.
  • To quantify the ZR's spatial relation to critical temporal lobe surgical landmarks.

Main Methods:

  • Analysis of 18 DICOM series with 2 mm axial MRI slices.
  • Reconstruction with the x-axis centered along the zygoma.
  • Identification of the posterior ZR point and measurement of distances to temporal lobe structures.

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Main Results:

  • The inferior temporal gyrus is consistently medial to the ZR.
  • Mean distance from ZR to temporal pole: ~2.77 cm.
  • Temporal horn tip located ~2.36 cm medial and ~1.34 cm superior to the ZR.

Conclusions:

  • The zygomatic root is an easily identifiable and consistent bony landmark.
  • It can serve as an adjuvant to neuronavigation for temporal lobe surgery.
  • Provides a reliable reference for surgical dissection of temporal lobe anatomy.